Hullbreaker

The deeper you dive, the harder the ocean fights back.

Take command of your submarine in Hullbreaker, an underwater action survival game packed with enemy swarms, powerful upgrades, and massive sea bosses. Dodge incoming attacks, collect resources, and build the firepower to survive your next encounter.

BUILD YOUR FIREPOWER
Choose upgrades as you level up during each dive. Combine weapons, deploy drones, and discover powerful evolutions to turn your submarine into a deep-sea fighting machine.

FACE THE GIANTS BELOW
Battle dangerous sea creatures and towering bosses. Learn their attack patterns, find openings, and keep moving as the water fills with danger.

FIND YOUR SUBMARINE
Unlock different submarines and refit your favorites. Equip gear, collect boss trophies, and experiment with builds that suit your play style.

BRING YOUR CREW ABOARD
Rescue stranded crew members and assign them to your submarine. Their bonuses help you prepare for tougher dives.

KEEP PUSHING DEEPER
Explore varied underwater environments, complete contracts, and take on harder Deep tiers. Test your endurance in Endless mode or tackle the Daily challenge.

FEATURES
• Underwater action with waves of enemies
• Distinct bosses with unique attack patterns
• Weapons, upgrades, and powerful evolutions
• Unlockable submarines and refit progression
• Equipment, boss trophies, and crew bonuses
• Contracts, Daily challenges, and Endless mode
• Colorful pixel art beneath the waves

Choose your submarine. Prepare your build. Find out how deep you can go.

Recent changes:
Welcome to Hullbreaker!

Take command of your submarine and battle through the depths.

• Survive enemy swarms and challenging sea bosses.
• Choose upgrades and discover powerful weapon evolutions.
• Unlock submarines, refit your fleet, and equip gear.
• Rescue crew members to strengthen your build.
• Take on Daily challenges, Endless mode, and deeper difficulty tiers.
• Save your progress to the cloud and compete on leaderboards.

How deep can you go?